Komatsu WA600-8 Operation & Maintenance Manual page 504

HANDLE STEERING WHEEL SPEC MACHINE
4.
Release R.H. brake pedal (2) gradually.
5.
Operate work equipment control levers (6) and (7), and
lower the bucket to the ground.
6.
Set bucket control lever (6) to "HOLD" position (c).
7.
Set boom control lever (7) to "HOLD" position (b).
8.
Press (a) of work equipment lock switch (8) and lock the
work equipment.
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ATTACHMENTS AND OPTIONS